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<li class="navelem"><a class="el" href="dir_d44c64559bbebec7f509842c48db8b23.html">include</a></li><li class="navelem"><a class="el" href="dir_0966d06610f72609fd9aa4979c2b5a92.html">common</a></li>  </ul>
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<div class="title">callable_traits.h</div>  </div>
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<a href="callable__traits_8h.html">Go to the documentation of this file.</a><div class="fragment"><div class="line"><a name="l00001"></a><span class="lineno">    1</span>&#160;<span class="comment">/*</span></div>
<div class="line"><a name="l00002"></a><span class="lineno">    2</span>&#160;<span class="comment"> * Copyright 2018 Universidad Carlos III de Madrid</span></div>
<div class="line"><a name="l00003"></a><span class="lineno">    3</span>&#160;<span class="comment"> * </span></div>
<div class="line"><a name="l00004"></a><span class="lineno">    4</span>&#160;<span class="comment"> * Licensed under the Apache License, Version 2.0 (the &quot;License&quot;);</span></div>
<div class="line"><a name="l00005"></a><span class="lineno">    5</span>&#160;<span class="comment"> * you may not use this file except in compliance with the License.</span></div>
<div class="line"><a name="l00006"></a><span class="lineno">    6</span>&#160;<span class="comment"> * You may obtain a copy of the License at</span></div>
<div class="line"><a name="l00007"></a><span class="lineno">    7</span>&#160;<span class="comment"> * </span></div>
<div class="line"><a name="l00008"></a><span class="lineno">    8</span>&#160;<span class="comment"> *     http://www.apache.org/licenses/LICENSE-2.0</span></div>
<div class="line"><a name="l00009"></a><span class="lineno">    9</span>&#160;<span class="comment"> * </span></div>
<div class="line"><a name="l00010"></a><span class="lineno">   10</span>&#160;<span class="comment"> * Unless required by applicable law or agreed to in writing, software</span></div>
<div class="line"><a name="l00011"></a><span class="lineno">   11</span>&#160;<span class="comment"> * distributed under the License is distributed on an &quot;AS IS&quot; BASIS,</span></div>
<div class="line"><a name="l00012"></a><span class="lineno">   12</span>&#160;<span class="comment"> * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.</span></div>
<div class="line"><a name="l00013"></a><span class="lineno">   13</span>&#160;<span class="comment"> * See the License for the specific language governing permissions and</span></div>
<div class="line"><a name="l00014"></a><span class="lineno">   14</span>&#160;<span class="comment"> * limitations under the License.</span></div>
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<div class="line"><a name="l00016"></a><span class="lineno">   16</span>&#160;<span class="preprocessor">#ifndef GRPPI_COMMON_CALLABLE_TRAITS_H</span></div>
<div class="line"><a name="l00017"></a><span class="lineno">   17</span>&#160;<span class="preprocessor">#define GRPPI_COMMON_CALLABLE_TRAITS_H</span></div>
<div class="line"><a name="l00018"></a><span class="lineno">   18</span>&#160; </div>
<div class="line"><a name="l00019"></a><span class="lineno">   19</span>&#160;<span class="preprocessor">#include &lt;type_traits&gt;</span></div>
<div class="line"><a name="l00020"></a><span class="lineno">   20</span>&#160; </div>
<div class="line"><a name="l00021"></a><span class="lineno"><a class="line" href="namespacegrppi.html">   21</a></span>&#160;<span class="keyword">namespace </span><a class="code" href="namespacegrppi.html">grppi</a> {</div>
<div class="line"><a name="l00022"></a><span class="lineno">   22</span>&#160; </div>
<div class="line"><a name="l00023"></a><span class="lineno"><a class="line" href="namespacegrppi_1_1internal.html">   23</a></span>&#160;<span class="keyword">namespace </span>internal {</div>
<div class="line"><a name="l00024"></a><span class="lineno">   24</span>&#160; </div>
<div class="line"><a name="l00026"></a><span class="lineno">   26</span>&#160;<span class="keyword">template</span> &lt;<span class="keyword">typename</span> T&gt;</div>
<div class="line"><a name="l00027"></a><span class="lineno"><a class="line" href="structgrppi_1_1internal_1_1identity.html">   27</a></span>&#160;<span class="keyword">struct </span><a class="code" href="structgrppi_1_1internal_1_1identity.html">identity</a> {</div>
<div class="line"><a name="l00028"></a><span class="lineno"><a class="line" href="structgrppi_1_1internal_1_1identity.html#ae09ab135beeca81288469a885ce53437">   28</a></span>&#160;  <span class="keyword">using</span> <a class="code" href="structgrppi_1_1internal_1_1identity.html#ae09ab135beeca81288469a885ce53437">type</a> = T;</div>
<div class="line"><a name="l00029"></a><span class="lineno">   29</span>&#160;};</div>
<div class="line"><a name="l00030"></a><span class="lineno">   30</span>&#160; </div>
<div class="line"><a name="l00031"></a><span class="lineno">   31</span>&#160;<span class="comment">// Callable helper for function objects defers to pointer to call operator</span></div>
<div class="line"><a name="l00032"></a><span class="lineno">   32</span>&#160;<span class="keyword">template</span> &lt;<span class="keyword">typename</span> T&gt;</div>
<div class="line"><a name="l00033"></a><span class="lineno"><a class="line" href="structgrppi_1_1internal_1_1callable__helper.html">   33</a></span>&#160;<span class="keyword">struct </span><a class="code" href="structgrppi_1_1internal_1_1callable__helper.html">callable_helper</a> : <a class="code" href="structgrppi_1_1internal_1_1callable__helper.html">callable_helper</a>&lt;decltype(&amp;T::operator())&gt;</div>
<div class="line"><a name="l00034"></a><span class="lineno">   34</span>&#160;{};</div>
<div class="line"><a name="l00035"></a><span class="lineno">   35</span>&#160; </div>
<div class="line"><a name="l00036"></a><span class="lineno">   36</span>&#160;<span class="comment">// Callable helper for function type</span></div>
<div class="line"><a name="l00037"></a><span class="lineno">   37</span>&#160;<span class="keyword">template</span> &lt;<span class="keyword">typename</span> R, <span class="keyword">typename</span> ... Args&gt;</div>
<div class="line"><a name="l00038"></a><span class="lineno"><a class="line" href="structgrppi_1_1internal_1_1callable__helper_3_01_r_07_args_8_8_8_08_4.html">   38</a></span>&#160;<span class="keyword">struct </span><a class="code" href="structgrppi_1_1internal_1_1callable__helper.html">callable_helper</a>&lt;R(Args...)&gt; : <a class="code" href="structgrppi_1_1internal_1_1identity.html">identity</a>&lt;R(Args...)&gt;</div>
<div class="line"><a name="l00039"></a><span class="lineno">   39</span>&#160;{</div>
<div class="line"><a name="l00040"></a><span class="lineno"><a class="line" href="structgrppi_1_1internal_1_1callable__helper_3_01_r_07_args_8_8_8_08_4.html#a3c52b0466a82840f3ff577a90f58e9b2">   40</a></span>&#160;  <span class="keyword">using</span> <a class="code" href="structgrppi_1_1internal_1_1callable__helper_3_01_r_07_args_8_8_8_08_4.html#a3c52b0466a82840f3ff577a90f58e9b2">arity</a> = <span class="keyword">typename</span> std::integral_constant&lt;size_t, <span class="keyword">sizeof</span>...(Args)&gt;::<a class="code" href="structgrppi_1_1internal_1_1identity.html#ae09ab135beeca81288469a885ce53437">type</a>;</div>
<div class="line"><a name="l00041"></a><span class="lineno">   41</span>&#160;};</div>
<div class="line"><a name="l00042"></a><span class="lineno">   42</span>&#160; </div>
<div class="line"><a name="l00043"></a><span class="lineno">   43</span>&#160;<span class="comment">// Callable helper for pointer to function defers to callable helper for</span></div>
<div class="line"><a name="l00044"></a><span class="lineno">   44</span>&#160;<span class="comment">// function type</span></div>
<div class="line"><a name="l00045"></a><span class="lineno">   45</span>&#160;<span class="keyword">template</span> &lt;<span class="keyword">typename</span> R, <span class="keyword">typename</span> ... Args&gt;</div>
<div class="line"><a name="l00046"></a><span class="lineno"><a class="line" href="structgrppi_1_1internal_1_1callable__helper_3_01_r_07_5_08_07_args_8_8_8_08_4.html">   46</a></span>&#160;<span class="keyword">struct </span><a class="code" href="structgrppi_1_1internal_1_1callable__helper.html">callable_helper</a>&lt;R(*)(Args...)&gt; : <a class="code" href="structgrppi_1_1internal_1_1callable__helper.html">callable_helper</a>&lt;R(Args...)&gt;</div>
<div class="line"><a name="l00047"></a><span class="lineno">   47</span>&#160;{};</div>
<div class="line"><a name="l00048"></a><span class="lineno">   48</span>&#160; </div>
<div class="line"><a name="l00049"></a><span class="lineno">   49</span>&#160;<span class="comment">// Callable helper for pointer to const member function defers to callable helper</span></div>
<div class="line"><a name="l00050"></a><span class="lineno">   50</span>&#160;<span class="comment">// for function type</span></div>
<div class="line"><a name="l00051"></a><span class="lineno">   51</span>&#160;<span class="keyword">template</span> &lt;<span class="keyword">typename</span> C, <span class="keyword">typename</span> R, <span class="keyword">typename</span> ... Args&gt;</div>
<div class="line"><a name="l00052"></a><span class="lineno"><a class="line" href="structgrppi_1_1internal_1_1callable__helper_3_01_r_07_c_1_1_5_08_07_args_8_8_8_08_01const_01_4.html">   52</a></span>&#160;<span class="keyword">struct </span><a class="code" href="structgrppi_1_1internal_1_1callable__helper.html">callable_helper</a>&lt;R(C::*)(Args...) const&gt; : <a class="code" href="structgrppi_1_1internal_1_1callable__helper.html">callable_helper</a>&lt;R(Args...)&gt;</div>
<div class="line"><a name="l00053"></a><span class="lineno">   53</span>&#160;{};</div>
<div class="line"><a name="l00054"></a><span class="lineno">   54</span>&#160; </div>
<div class="line"><a name="l00055"></a><span class="lineno">   55</span>&#160;<span class="comment">// Callable helper for pointer to non-const member function defers to callable helper</span></div>
<div class="line"><a name="l00056"></a><span class="lineno">   56</span>&#160;<span class="comment">// for function type</span></div>
<div class="line"><a name="l00057"></a><span class="lineno">   57</span>&#160;<span class="keyword">template</span> &lt;<span class="keyword">typename</span> C, <span class="keyword">typename</span> R, <span class="keyword">typename</span> ... Args&gt;</div>
<div class="line"><a name="l00058"></a><span class="lineno"><a class="line" href="structgrppi_1_1internal_1_1callable__helper_3_01_r_07_c_1_1_5_08_07_args_8_8_8_08_4.html">   58</a></span>&#160;<span class="keyword">struct </span><a class="code" href="structgrppi_1_1internal_1_1callable__helper.html">callable_helper</a>&lt;R(C::*)(Args...)&gt; : <a class="code" href="structgrppi_1_1internal_1_1callable__helper.html">callable_helper</a>&lt;R(Args...)&gt;</div>
<div class="line"><a name="l00059"></a><span class="lineno">   59</span>&#160;{};</div>
<div class="line"><a name="l00060"></a><span class="lineno">   60</span>&#160; </div>
<div class="line"><a name="l00061"></a><span class="lineno">   61</span>&#160;<span class="comment">// Callable single interface defers to corresponding callable helper</span></div>
<div class="line"><a name="l00062"></a><span class="lineno">   62</span>&#160;<span class="keyword">template</span> &lt;<span class="keyword">typename</span> T&gt;</div>
<div class="line"><a name="l00063"></a><span class="lineno"><a class="line" href="structgrppi_1_1internal_1_1callable.html">   63</a></span>&#160;<span class="keyword">struct </span><a class="code" href="structgrppi_1_1internal_1_1callable.html">callable</a> : <a class="code" href="structgrppi_1_1internal_1_1callable__helper.html">callable_helper</a>&lt;T&gt;</div>
<div class="line"><a name="l00064"></a><span class="lineno">   64</span>&#160;{};</div>
<div class="line"><a name="l00065"></a><span class="lineno">   65</span>&#160; </div>
<div class="line"><a name="l00066"></a><span class="lineno">   66</span>&#160;<span class="comment">// Convenience meta-function for getting arity of a callable</span></div>
<div class="line"><a name="l00067"></a><span class="lineno">   67</span>&#160;<span class="keyword">template</span> &lt;<span class="keyword">typename</span> T&gt;</div>
<div class="line"><a name="l00068"></a><span class="lineno"><a class="line" href="namespacegrppi_1_1internal.html#a1443358c1ab67350bdbc2381cece9958">   68</a></span>&#160;constexpr <span class="keywordtype">size_t</span> <a class="code" href="namespacegrppi_1_1internal.html#a1443358c1ab67350bdbc2381cece9958">callable_arity</a>() {</div>
<div class="line"><a name="l00069"></a><span class="lineno">   69</span>&#160;  <span class="keywordflow">return</span> <span class="keyword">typename</span> <a class="code" href="structgrppi_1_1internal_1_1callable.html">callable&lt;T&gt;::arity</a>();</div>
<div class="line"><a name="l00070"></a><span class="lineno">   70</span>&#160;}</div>
<div class="line"><a name="l00071"></a><span class="lineno">   71</span>&#160; </div>
<div class="line"><a name="l00072"></a><span class="lineno">   72</span>&#160;<span class="comment">// Meta-function for determining if a callable returns void</span></div>
<div class="line"><a name="l00073"></a><span class="lineno">   73</span>&#160;<span class="keyword">template</span> &lt;<span class="keyword">typename</span> G&gt;</div>
<div class="line"><a name="l00074"></a><span class="lineno"><a class="line" href="namespacegrppi_1_1internal.html#a36a790dfd0f9122127ce74df378090e1">   74</a></span>&#160;constexpr <span class="keywordtype">bool</span> <a class="code" href="namespacegrppi_1_1internal.html#a36a790dfd0f9122127ce74df378090e1">has_void_return</a>() {</div>
<div class="line"><a name="l00075"></a><span class="lineno">   75</span>&#160;  <span class="keywordflow">return</span> std::is_same&lt;void,</div>
<div class="line"><a name="l00076"></a><span class="lineno">   76</span>&#160;      <span class="keyword">typename</span> std::result_of&lt;G()&gt;::type</div>
<div class="line"><a name="l00077"></a><span class="lineno">   77</span>&#160;  &gt;::value;</div>
<div class="line"><a name="l00078"></a><span class="lineno">   78</span>&#160;}</div>
<div class="line"><a name="l00079"></a><span class="lineno">   79</span>&#160; </div>
<div class="line"><a name="l00080"></a><span class="lineno">   80</span>&#160;<span class="keyword">template</span> &lt;<span class="keyword">typename</span> F, <span class="keyword">typename</span> I&gt;</div>
<div class="line"><a name="l00081"></a><span class="lineno"><a class="line" href="namespacegrppi_1_1internal.html#a672e9250407c1b1968b19db97e88e36b">   81</a></span>&#160;constexpr <span class="keywordtype">bool</span> <a class="code" href="namespacegrppi_1_1internal.html#a36a790dfd0f9122127ce74df378090e1">has_void_return</a>() {</div>
<div class="line"><a name="l00082"></a><span class="lineno">   82</span>&#160;  <span class="keywordflow">return</span> std::is_same&lt;void,</div>
<div class="line"><a name="l00083"></a><span class="lineno">   83</span>&#160;        <span class="keyword">typename</span> std::result_of&lt;F(I)&gt;::type</div>
<div class="line"><a name="l00084"></a><span class="lineno">   84</span>&#160;      &gt;::value;</div>
<div class="line"><a name="l00085"></a><span class="lineno">   85</span>&#160;}</div>
<div class="line"><a name="l00086"></a><span class="lineno">   86</span>&#160; </div>
<div class="line"><a name="l00087"></a><span class="lineno">   87</span>&#160;<span class="comment">// Meta-function for determining if a callable has arguments</span></div>
<div class="line"><a name="l00088"></a><span class="lineno">   88</span>&#160;<span class="keyword">template</span> &lt;<span class="keyword">typename</span> F&gt;</div>
<div class="line"><a name="l00089"></a><span class="lineno"><a class="line" href="namespacegrppi_1_1internal.html#a830d6dbae17c03ceb5baed4b1155dec7">   89</a></span>&#160;constexpr <span class="keywordtype">bool</span> <a class="code" href="namespacegrppi_1_1internal.html#a830d6dbae17c03ceb5baed4b1155dec7">has_arguments</a>() {</div>
<div class="line"><a name="l00090"></a><span class="lineno">   90</span>&#160;  <span class="keywordflow">return</span> <span class="keyword">typename</span> <a class="code" href="structgrppi_1_1internal_1_1callable.html">internal::callable&lt;F&gt;::arity</a>() != 0;</div>
<div class="line"><a name="l00091"></a><span class="lineno">   91</span>&#160;}</div>
<div class="line"><a name="l00092"></a><span class="lineno">   92</span>&#160; </div>
<div class="line"><a name="l00093"></a><span class="lineno">   93</span>&#160;} <span class="comment">// end namespace internal</span></div>
<div class="line"><a name="l00094"></a><span class="lineno">   94</span>&#160; </div>
<div class="line"><a name="l00095"></a><span class="lineno">   95</span>&#160; </div>
<div class="line"><a name="l00096"></a><span class="lineno">   96</span>&#160;<span class="comment">// Meta-function for determining if F is consumer of I</span></div>
<div class="line"><a name="l00097"></a><span class="lineno">   97</span>&#160;<span class="keyword">template</span> &lt;<span class="keyword">typename</span> F, <span class="keyword">typename</span> I&gt;</div>
<div class="line"><a name="l00098"></a><span class="lineno"><a class="line" href="namespacegrppi.html#a564594a7740535f7c4c037099dd7a461">   98</a></span>&#160;constexpr <span class="keywordtype">bool</span> <a class="code" href="namespacegrppi.html#a564594a7740535f7c4c037099dd7a461">is_consumer</a> = internal::has_void_return&lt;F,I&gt;();</div>
<div class="line"><a name="l00099"></a><span class="lineno">   99</span>&#160; </div>
<div class="line"><a name="l00100"></a><span class="lineno">  100</span>&#160;<span class="comment">// Meta-function for determining if G is a generator</span></div>
<div class="line"><a name="l00101"></a><span class="lineno">  101</span>&#160;<span class="keyword">template</span> &lt;<span class="keyword">typename</span> G&gt;</div>
<div class="line"><a name="l00102"></a><span class="lineno"><a class="line" href="namespacegrppi.html#a28c0d1f51bb6e4da8f9bdea17cce7a5b">  102</a></span>&#160;constexpr <span class="keywordtype">bool</span> <a class="code" href="namespacegrppi.html#a28c0d1f51bb6e4da8f9bdea17cce7a5b">is_generator</a> = </div>
<div class="line"><a name="l00103"></a><span class="lineno">  103</span>&#160;  !internal::has_void_return&lt;G&gt;();</div>
<div class="line"><a name="l00104"></a><span class="lineno">  104</span>&#160; </div>
<div class="line"><a name="l00105"></a><span class="lineno">  105</span>&#160;<span class="comment">// Concept emulation requiring a callable generating values</span></div>
<div class="line"><a name="l00106"></a><span class="lineno">  106</span>&#160;<span class="keyword">template</span> &lt;<span class="keyword">typename</span> G&gt;</div>
<div class="line"><a name="l00107"></a><span class="lineno"><a class="line" href="namespacegrppi.html#a1e6cb40f6fea92dfcab82349b9f1f202">  107</a></span>&#160;<span class="keyword">using</span> <a class="code" href="namespacegrppi.html#a1e6cb40f6fea92dfcab82349b9f1f202">requires_generator</a> =</div>
<div class="line"><a name="l00108"></a><span class="lineno">  108</span>&#160;  <span class="keyword">typename</span> std::enable_if_t&lt;is_generator&lt;G&gt;, <span class="keywordtype">int</span>&gt;;</div>
<div class="line"><a name="l00109"></a><span class="lineno">  109</span>&#160; </div>
<div class="line"><a name="l00110"></a><span class="lineno">  110</span>&#160; </div>
<div class="line"><a name="l00111"></a><span class="lineno">  111</span>&#160;<span class="comment">// Concept emulation requiring a callable with one or more arguments</span></div>
<div class="line"><a name="l00112"></a><span class="lineno">  112</span>&#160;<span class="keyword">template</span> &lt;<span class="keyword">typename</span> F&gt;</div>
<div class="line"><a name="l00113"></a><span class="lineno"><a class="line" href="namespacegrppi.html#aa953140c899760e8975a238af6f3443d">  113</a></span>&#160;<span class="keyword">using</span> <a class="code" href="namespacegrppi.html#aa953140c899760e8975a238af6f3443d">requires_arguments</a> =</div>
<div class="line"><a name="l00114"></a><span class="lineno">  114</span>&#160;  <span class="keyword">typename</span> std::enable_if_t&lt;internal::has_arguments&lt;F&gt;(), <span class="keywordtype">int</span>&gt;;</div>
<div class="line"><a name="l00115"></a><span class="lineno">  115</span>&#160; </div>
<div class="line"><a name="l00116"></a><span class="lineno">  116</span>&#160;<span class="comment">// Concept emulation requiring a callable consuming values</span></div>
<div class="line"><a name="l00117"></a><span class="lineno">  117</span>&#160;<span class="keyword">template</span> &lt;<span class="keyword">typename</span> F, <span class="keyword">typename</span> I&gt;</div>
<div class="line"><a name="l00118"></a><span class="lineno"><a class="line" href="namespacegrppi.html#a0d8c8cf548425f816962f354b33a760e">  118</a></span>&#160;<span class="keyword">using</span> <a class="code" href="namespacegrppi.html#a0d8c8cf548425f816962f354b33a760e">requires_consumer</a> =</div>
<div class="line"><a name="l00119"></a><span class="lineno">  119</span>&#160;  <span class="keyword">typename</span> std::enable_if_t&lt;internal::has_void_return&lt;F(I)&gt;(), <span class="keywordtype">int</span>&gt;;</div>
<div class="line"><a name="l00120"></a><span class="lineno">  120</span>&#160; </div>
<div class="line"><a name="l00121"></a><span class="lineno">  121</span>&#160; </div>
<div class="line"><a name="l00122"></a><span class="lineno">  122</span>&#160; </div>
<div class="line"><a name="l00123"></a><span class="lineno">  123</span>&#160;} <span class="comment">// end namespace grppi</span></div>
<div class="line"><a name="l00124"></a><span class="lineno">  124</span>&#160; </div>
<div class="line"><a name="l00125"></a><span class="lineno">  125</span>&#160;<span class="preprocessor">#endif</span></div>
<div class="ttc" id="anamespacegrppi_1_1internal_html_a1443358c1ab67350bdbc2381cece9958"><div class="ttname"><a href="namespacegrppi_1_1internal.html#a1443358c1ab67350bdbc2381cece9958">grppi::internal::callable_arity</a></div><div class="ttdeci">constexpr size_t callable_arity()</div><div class="ttdef"><b>Definition:</b> callable_traits.h:68</div></div>
<div class="ttc" id="anamespacegrppi_1_1internal_html_a36a790dfd0f9122127ce74df378090e1"><div class="ttname"><a href="namespacegrppi_1_1internal.html#a36a790dfd0f9122127ce74df378090e1">grppi::internal::has_void_return</a></div><div class="ttdeci">constexpr bool has_void_return()</div><div class="ttdef"><b>Definition:</b> callable_traits.h:74</div></div>
<div class="ttc" id="anamespacegrppi_1_1internal_html_a830d6dbae17c03ceb5baed4b1155dec7"><div class="ttname"><a href="namespacegrppi_1_1internal.html#a830d6dbae17c03ceb5baed4b1155dec7">grppi::internal::has_arguments</a></div><div class="ttdeci">constexpr bool has_arguments()</div><div class="ttdef"><b>Definition:</b> callable_traits.h:89</div></div>
<div class="ttc" id="anamespacegrppi_html"><div class="ttname"><a href="namespacegrppi.html">grppi</a></div><div class="ttdef"><b>Definition:</b> callable_traits.h:21</div></div>
<div class="ttc" id="anamespacegrppi_html_a0d8c8cf548425f816962f354b33a760e"><div class="ttname"><a href="namespacegrppi.html#a0d8c8cf548425f816962f354b33a760e">grppi::requires_consumer</a></div><div class="ttdeci">typename std::enable_if_t&lt; internal::has_void_return&lt; F(I)&gt;(), int &gt; requires_consumer</div><div class="ttdef"><b>Definition:</b> callable_traits.h:119</div></div>
<div class="ttc" id="anamespacegrppi_html_a1e6cb40f6fea92dfcab82349b9f1f202"><div class="ttname"><a href="namespacegrppi.html#a1e6cb40f6fea92dfcab82349b9f1f202">grppi::requires_generator</a></div><div class="ttdeci">typename std::enable_if_t&lt; is_generator&lt; G &gt;, int &gt; requires_generator</div><div class="ttdef"><b>Definition:</b> callable_traits.h:108</div></div>
<div class="ttc" id="anamespacegrppi_html_a28c0d1f51bb6e4da8f9bdea17cce7a5b"><div class="ttname"><a href="namespacegrppi.html#a28c0d1f51bb6e4da8f9bdea17cce7a5b">grppi::is_generator</a></div><div class="ttdeci">constexpr bool is_generator</div><div class="ttdef"><b>Definition:</b> callable_traits.h:102</div></div>
<div class="ttc" id="anamespacegrppi_html_a564594a7740535f7c4c037099dd7a461"><div class="ttname"><a href="namespacegrppi.html#a564594a7740535f7c4c037099dd7a461">grppi::is_consumer</a></div><div class="ttdeci">constexpr bool is_consumer</div><div class="ttdef"><b>Definition:</b> callable_traits.h:98</div></div>
<div class="ttc" id="anamespacegrppi_html_aa953140c899760e8975a238af6f3443d"><div class="ttname"><a href="namespacegrppi.html#aa953140c899760e8975a238af6f3443d">grppi::requires_arguments</a></div><div class="ttdeci">typename std::enable_if_t&lt; internal::has_arguments&lt; F &gt;(), int &gt; requires_arguments</div><div class="ttdef"><b>Definition:</b> callable_traits.h:114</div></div>
<div class="ttc" id="astructgrppi_1_1internal_1_1callable__helper_3_01_r_07_args_8_8_8_08_4_html_a3c52b0466a82840f3ff577a90f58e9b2"><div class="ttname"><a href="structgrppi_1_1internal_1_1callable__helper_3_01_r_07_args_8_8_8_08_4.html#a3c52b0466a82840f3ff577a90f58e9b2">grppi::internal::callable_helper&lt; R(Args...)&gt;::arity</a></div><div class="ttdeci">typename std::integral_constant&lt; size_t, sizeof...(Args)&gt;::type arity</div><div class="ttdef"><b>Definition:</b> callable_traits.h:40</div></div>
<div class="ttc" id="astructgrppi_1_1internal_1_1callable__helper_html"><div class="ttname"><a href="structgrppi_1_1internal_1_1callable__helper.html">grppi::internal::callable_helper</a></div><div class="ttdef"><b>Definition:</b> callable_traits.h:34</div></div>
<div class="ttc" id="astructgrppi_1_1internal_1_1callable_html"><div class="ttname"><a href="structgrppi_1_1internal_1_1callable.html">grppi::internal::callable</a></div><div class="ttdef"><b>Definition:</b> callable_traits.h:64</div></div>
<div class="ttc" id="astructgrppi_1_1internal_1_1identity_html"><div class="ttname"><a href="structgrppi_1_1internal_1_1identity.html">grppi::internal::identity</a></div><div class="ttdoc">Identity type trait.</div><div class="ttdef"><b>Definition:</b> callable_traits.h:27</div></div>
<div class="ttc" id="astructgrppi_1_1internal_1_1identity_html_ae09ab135beeca81288469a885ce53437"><div class="ttname"><a href="structgrppi_1_1internal_1_1identity.html#ae09ab135beeca81288469a885ce53437">grppi::internal::identity::type</a></div><div class="ttdeci">T type</div><div class="ttdef"><b>Definition:</b> callable_traits.h:28</div></div>
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